Troy Walsh is a friendly and helpful Night Vale resident who is also childishly irresponsible.
Troy Walsh seems to be immortal, because he is the father of Jackie Fierro who was nineteen for centuries. Also, he is on a photograph taken early in the twentieth century.
He is said to be handsome in every possible way and by that not being handsome at all. In the novel, the many different forms of Troy Walsh have many jobs such as a cook in the Moonlite All-Nite Diner and a Movie Theater employee.
Troy Walsh was also the prosecuting attorney in Hiram McDaniels' trial. A different but identical looking Troy Walsh was Hiram's defense attorney.